diff options
| -rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_x86sse.c | 44 | ||||
| -rw-r--r-- | src/gallium/auxiliary/rtasm/rtasm_x86sse.h | 6 |
2 files changed, 47 insertions, 3 deletions
diff --git a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c index d78676b8f3..2415b0156b 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_x86sse.c +++ b/src/gallium/auxiliary/rtasm/rtasm_x86sse.c @@ -218,6 +218,8 @@ static void emit_3ub( struct x86_function *p, unsigned char b0, unsigned char b1 /* Build a modRM byte + possible displacement. No treatment of SIB * indexing. BZZT - no way to encode an absolute address. + * + * This is the "/r" field in the x86 manuals... */ static void emit_modrm( struct x86_function *p, struct x86_reg reg, @@ -256,7 +258,8 @@ static void emit_modrm( struct x86_function *p, } } - +/* Emits the "/0".."/7" specialized versions of the modrm ("/r") bytes. + */ static void emit_modrm_noreg( struct x86_function *p, unsigned op, struct x86_reg regmem ) @@ -365,8 +368,7 @@ void x86_jcc( struct x86_function *p, DUMP_I(cc); if (offset < 0) { - int amt = p->csr - p->store; - assert(amt > -offset); + assert(p->csr - p->store > -offset); } if (offset <= 127 && offset >= -128) { @@ -443,6 +445,16 @@ void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm ) emit_1i(p, imm); } +void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm ) +{ + DUMP_RI( dst, imm ); + assert(dst.mod == mod_REG); + emit_1ub(p, 0x80); + emit_modrm_noreg(p, 0, dst); + emit_1ub(p, imm); +} + + void x86_push( struct x86_function *p, struct x86_reg reg ) { @@ -459,6 +471,17 @@ void x86_push( struct x86_function *p, p->stack_offset += 4; } +void x86_push_imm32( struct x86_function *p, + int imm32 ) +{ + DUMP_I( imm32 ); + emit_1ub(p, 0x68); + emit_1i(p, imm32); + + p->stack_offset += 4; +} + + void x86_pop( struct x86_function *p, struct x86_reg reg ) { @@ -1558,6 +1581,21 @@ void mmx_movq( struct x86_function *p, */ +void x86_cdecl_caller_push_regs( struct x86_function *p ) +{ + x86_push(p, x86_make_reg(file_REG32, reg_AX)); + x86_push(p, x86_make_reg(file_REG32, reg_CX)); + x86_push(p, x86_make_reg(file_REG32, reg_DX)); +} + +void x86_cdecl_caller_pop_regs( struct x86_function *p ) +{ + x86_pop(p, x86_make_reg(file_REG32, reg_DX)); + x86_pop(p, x86_make_reg(file_REG32, reg_CX)); + x86_pop(p, x86_make_reg(file_REG32, reg_AX)); +} + + /* Retreive a reference to one of the function arguments, taking into * account any push/pop activity: */ diff --git a/src/gallium/auxiliary/rtasm/rtasm_x86sse.h b/src/gallium/auxiliary/rtasm/rtasm_x86sse.h index 9f7e31e055..63e812fac9 100644 --- a/src/gallium/auxiliary/rtasm/rtasm_x86sse.h +++ b/src/gallium/auxiliary/rtasm/rtasm_x86sse.h @@ -155,6 +155,7 @@ void x86_call( struct x86_function *p, struct x86_reg reg); * I load the immediate into general purpose register and use it. */ void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm ); +void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm ); /* Macro for sse_shufps() and sse2_pshufd(): @@ -225,6 +226,7 @@ void x86_imul( struct x86_function *p, struct x86_reg dst, struct x86_reg src ); void x86_or( struct x86_function *p, struct x86_reg dst, struct x86_reg src ); void x86_pop( struct x86_function *p, struct x86_reg reg ); void x86_push( struct x86_function *p, struct x86_reg reg ); +void x86_push_imm32( struct x86_function *p, int imm ); void x86_ret( struct x86_function *p ); void x86_retw( struct x86_function *p, unsigned short imm ); void x86_sub( struct x86_function *p, struct x86_reg dst, struct x86_reg src ); @@ -232,6 +234,10 @@ void x86_test( struct x86_function *p, struct x86_reg dst, struct x86_reg src ); void x86_xor( struct x86_function *p, struct x86_reg dst, struct x86_reg src ); void x86_sahf( struct x86_function *p ); + +void x86_cdecl_caller_push_regs( struct x86_function *p ); +void x86_cdecl_caller_pop_regs( struct x86_function *p ); + void x87_assert_stack_empty( struct x86_function *p ); void x87_f2xm1( struct x86_function *p ); |